Libcpuid is a small C library for x86 CPU detection and feature extraction. Using it, you can:

- get the processor vendor, model, brand string, code name, - get information about CPU features such as: number of cores or logical CPUs, cache sizes, CPU clock, - check if the processor implements a specific instruction set such as the SSE2, 3DNow!, - execute the CPUID and RDTSC instructions (portably!)

This package ships the cpuidtool.